Double acting switch timer



June 16, 1931. R. D. SMITH 1,810,187

DOUBLE ACTING SWITCH TIMER Fi 1924 3 Sheets-Sheet l June 16, 1931. R. D. SMITH DOUBLE ACTING SWITCH TIMER i Ov- 1924 3 $heets-Shee1: 2

\mamcm June 16, 1931. sMlTH 1,810,187

DOUBLE ACTING SWITCH TIMER Fil O 2, 1924 5 Sheets-Shem 3 Patented June 16, 1931' f.1,s10,1s1

UNITED STATES'PATENT OFFICE.

RAYMOND 1). SMITH, 0F PLEASANTVILLE, NEW YORK, ASSIGNOR TO 'I'REHON'I PROD- UUI'S CORPORAQION, OF BOSTON, MASSACHUSETTS, A CORPORATION SETTS O1 MASSACHU- DOUBLE AGEING SWITCH TIMER Original application filed May 8, 1918, Serial No. 233,350, renewed March 22, 1923, now Yatent No. 1,521,841, issued Jann'ary 6, 1825. Divided and this application filed November 12, 1924. Serial No.

This invention relates in general to time controlled devices, such as electric switches, that may incorporate mechanism for effecting,at respectively pro-determined times, two or more time controlled actuations of the switch, and specifically pertains to time switches wherein ordinarily the switch is adapted to be operated without time control by hand and preferably when so operated adapted to remain indefinitely in its different circuit controlling positions independently of the time control mechanism the associated switcltoperating timer mechanism. however, being, readily conditioned to effect a plurality of automatic actuations of the switch at respectively different and selectable times when the timer is set in operation which is preferably effected by the act of setting the time. If of the spring movement driven type, the timing mechanism is preferably arranged so that the act of setting the time correspondingly winds the movement spring and further so arranged that the time setting may be reduced by reverse movement of the setting handle if desired. An example of this type of time switch arranged to effect a single, automatically timed, switch action is disclosed in my United States Patent Number 1,493,771 issued May 13, 1924. The present application is divisional from my United States Patent No. 1,521,841, issued Jan-6, 1925.

In the former of my above mentioned two patents it is expressly pointed out that the subject matter of these co-related inventions and particularly of the various distinctive arrangements of timer mechanism represented are as readily embodiable in timer mechanism for a gas valve or other device, as for electric switches. I shall employ the term flow controller hereinafter interchangeably with the term electric switch to designate not only an electric switch; but any fair equivalent which might be substituted for same by those skilled in the art of time controlled devices for seizing upon the advantages of the present improvements in timing mechanism.

The term flow controller as herein used will be understood. to designate any device hav ng a working part or parts shiftable in position for controlling the fiow of electricity or other medium in or through a wire or other conduit, where the combinations referred to and claimed as comprising my invention do not depend for their novelty or usefulness on distinctive features of construction and function peculiar to electric switchesmechanism looking from the left at Fig. 1,.

showing timer parts in their normal or zero position and freeing the switch for manual control.

Fig. 3 is a view similar to Fig. 2 with timer parts positioned for cooking the switch for time controlled On and Off action.

Fig. 4 is a View similar to Fig. 3 after the first time controlled switch action has occurred.

Fig. 5 is a perspective view of the complete switch and actuating mechanism with timer parts positioned to correspond with Fig. 3.

Fig. 6 shows indicator mechanism that ma be associated with and actuated by the switch parts of Figs. 1 to 5 inclusive, to indicate when the switch is and is not cooked for time control, and also to indicate whether the switch is On of Off. r

Fig. 7 ,is a diagrammatic side view partly in section looking from the right at Fig. 6.

Figs. 8, 9, 10, and 11 show in enlarged detail the overlapping relation of the moving signs in Fig. 6 and are sections taken on planes corespondingly numbered in Fig. 6.

Fig. 12 is a side view in operating association with Fig. 7 looking from the right at a portion of the switch mechanism in Fi 6.

Fig. 13 shows the moving parts of ig. 6 differently positioned.

Fig. 14 is a composite view of the parts shown both in Figs. 7 and 12 in different operating relation.

Sim1lar reference characters, if appearing in more than one of the above described figures, identify the same part in the various views.

The main parts of my complete switch and timer structure are shown as connected by, and mounted upon, a common support plate 10. On the upper portion of this plate is rigidly mounted (in a manner to be readily removable) by screws 11 and spacing washers 12, the rear frame plate 13 of a simple balance-wheel, escapement movement that comprises part of the timer mechanism that will be more fully described, ,compositely designated by the numeral 14; while to the lower portion of this support plate, is secured a switch panel 16, of insulating material.

On the switch panel 16 are mounted hinge clips 19, contact clips 21 and corresponding binding post screws 22 for lead wires 23, the electric circuit through which is to be made and broken by swinging movement of two conductive blades 24, 24,of ordinary knifeswitch construction,the said blades being bridged at their tops, as usual, by a connecting bar 26 of insulating material.

The support frame for the switch actuating mechanism comprises, in the form shown, two sheet-metal brackets 27, 27, that are each bent to a rectangular U-shape, the two-arm portions thereof extending forwardly from behind the switch panel 16 and one arm 28 of each bracket lying respectively adjacent to the extreme side edges of said panel while the other two bracket arms 29, 29, protrude adjacently through a common central cutaway in the bottom portion of the panel and in the support plate 10. At their place of attachment to the back of the panel, these brackets are rigidly and independently riveted or screwed to the support plate 10, which latter overlaps the brackets 27 at the rear surface of the switch panel.

The two centrally adjacent arms 29, 29, of brackets 27 are parallelly disposed, there being a small space between said arms to accommodate a switch actuator lever 31 mounted to swing on the bracket-carried pivot pin 32.

For co-operating with the actuator lever 31 in a manner to be described, the connecting bar 26 carries a bracket fitting 37 composed of a mounting yoke portion capping the connecting bar and also having a rearwardly and downwardly extending portion 39 that provides a rigid and convenient anchorage point for one end of the main, coiled, switchoperating spring 41 the other end of which latter is hooked through a hole at 42 in the actuator lever 31.

The powerful switch-actuating spring 41 tends to hold the switch blade and the actuator lever portion 35 in relative abutment;

and since from Fig. 1 it is clear that the actuator lever and the switch blades, though se arately pivoted, are pivoted in substantial concentric relation, it will be understood that normally the said lever, its abutting projection 35 and the blades are all adapted to swing in unison, thus abuttingly related.

For manually swinging the actuator lever 31, any suitable handle provision may be made,-the present disclosure for sake of i1- lustration, showing a bail crank 47 ivoted at 48, 48, at the sides of the support racket side arms, 28, 28, and concentrically with the pivots of the switch blades 24 and of the actuator lever 31. This bail member, as shown, is twisted at a central point 49 in its spanning portion, so as to enga e with a slot cut in the extreme upper end 0 the actuator lever,this construction permitting of ready disassemblage of parts and also allowing of slight, radial movement to compensate for lack of exact concentricity between the bail crank and actuator lever ivots. The bail crank 47, together with t e entire switch, may be enclosed within a casing, and connected with a radial operating arm or crank 51 outside the casing. Two studs 53, 53, engage a rearwardly extended portion 54 of the arm 51 directly to limit the latters swinging movement, thus to render impossible any strain on the interior mechanism.

Swinging the control arm 51 upwardly throws the switch blades 24 into engagement with the contact clips 21, which, as commonly constructed, are of bronze or other resilient conductive metal and ada ted to spread slightly apart to accommodate the blades when seated therein. The squeezing tension of the clips 21 against the blades offers appreciable frictional resistance to their withdrawal, so that upon swinging the control arm 51 forwardly, this frictional resistance ordinarily is not overcome until appreciable separation has occurred between the actuator lever 31 and the connecting bar 26. Such separation obviously increases the tension in the connecting spring 41, tending to pull the blades out of engagement with the clips, so that at some point in the forward and downward swing of the actuator lever 31 this tension will have become strong enough to overcome the retaining friction and cause the blades quickly to snap away from the clips 21, again to assume their normal abutting position relative to the actuator lever 31.

Certain detent and catch parts are involved in the timer-controlled, automatic operation of my improved form of switch actuating mechanism as will now be described. In Figs. 1 and 5, the actuator 31 is shown as provided with a downwardly extending portion formed as a catch 56 which is positioned to engage with a latch member 57 pivoted at 58 astraddle bracket arms 29 and urged by a spring 59 to its dotted line position shown L magnitude of the force component tendin in Fig. 1, where a connectin portion 61 of the two parallel portions of t e latch 57 acts as a stop against the front edges of the supan uppermost position, as shown in Fig. 1'

by the'light coiled spring 64 located in a hollow portion of the dog. This dog has stop-feet 66 extending downwardly to stop against a shelf 67 that is formed in the bent metal fitting 37 for limiting the upward movement of the dogs nose portion. A detent lever 68 is free to swing on a pivot in 69 mounted in bracket ears 71 struck orwardly from the support plate 10, the forwardly extending arms of this lever carrying between their ends, a detent block 72 having an oblique cut-out 73 in same. This detent block is so positioned through abutment of the lever 68 against a stop 74, as to fall directly in front of, and in position to engage with. the nose of dog 63 when the switch blades are well seated in their contact clips. Bearing on the upper, rounded surface of the block 72 is a presser foot 76, carried by the feeler lever 77 and vertically adjustable on the latter by means of the screws 78, 78. The feeler lever 77 is'bent at its mounted portion so as to have bearing at two points on a pivot bolt 79 which near its head passes through, and is supported by an overhanging bracket formation 81 struck out from the support plate 10 (see Fig. 5). A light coiled spring 82 assists gravity normally to urge the swinging detent block 72 and presser foot 76 to their lower position so that the former ma be engaged by the nose of the latch dog 63. The nature of this engagement, however, is such, that the forward thrust of dog 63 on the detent block 72 acts in such angular direction relative to the pivot pin 69 of lever 68 as to urge the said block and lever up wardly about the pivot pin 69 to permit escapement of the dog. The proportional thus to thrust the block upwardly relative to the total pull exerted by spring 41 on the connecting bar 26 depends on the angle of the engaging surfaces of block 72 and the dog 63. It will be noted that the reactive thrust on the dog is in such direction relative to the latters pivot 62 as to be positively opposed by the abutment of the dogs foot portion 66 against the bracket fitting'37. Downward yielding of the dogs nose portion, however,

always permits the dog" to pass the detent block "(whether or not the latter is locked against upward yielding), inits opp'o'siteor circuitmaking travel. Ipreferably arrange the angle of engagement bet-ween dog 63 and block'72 so that only a small proportion of the total force of spring 41, tending to'pull the dog forwardly past the block, is't ransferred into a component effective to urge the block upwardly, and, accordingly, byfar the greater part of this force is borne as a direct pull upon the pivot pin 69. And this small component of force is still further diminished tlnough multiplicationof leverage so that ultimately a very slight pressure applied downwardly at the upper, free end 83 of feelel jlever 77 is operative positively to block the-upward yielding tendency'of the detent parts when the blades are put underthe relatively heavy tension of spring 41 to cause their circuit breaking action. i

Another switch operating spring 176 connects an elbow portion of the lever 31 with an anchorage 183 on the frame 10 always urging lever 31 to its uppermost or switch closing position.

As in the structure of my issued patent'and co-pending application, before'referred to, it is the function of the simple timer mechanism employed to block and ataa pre-determined time to release the end 83 of the feelcr 77 to prevent or permit the above described yielding movement thereof at'each forward escapement of dog 63 from detent'block 7 2.

This timer mechanism is generally described in my before mentioned'patent and,therefore, it will suffice here to state that the immediate operative elements are the rotatable cam 84 mounted on a squared portion 85 of the main timer-spindle, which latter has-bearings in the frame of the escapement movement 14 and is constantly urged to rotate clockwise (as viewed-in Figs. 2, 3 and 4) by the band spring 86, to a; stop-determined position, as determined by engagement of the y cam-carried arm 87 with aframe-mounted stud 88. All spring-caused, clockwise rot-ation of this cam and spindle, however, is-re tarded by a kind of balance-wheel escapement movement fully illustrated in the drawings,

g reverse movement of the same time setting handle which is connected to wind the main spring of the movement as well as to set the may be manually adjusted (by turning the timer control hand 89) in either direction and to any desired time-setting,-the degree of energization of band spring 86 (at one end connected to spindle 85 and at the other the clock frame) being always proportional to the amount of counter-clockwise, rotative displacement of the timer control hand 89 and cam 84 from their zero position (Fig. 2). The control hand 89 may be set at any desired graduation on an associated, casing-mounted dial 91 (Fig. 1) which is appropriately marked to indicate the time consumed in return of the pointer handle and cam to their zero posit-ion from its different possible time settings. In Figs. 3 and 5, a cut-out portion 92 in the edge of cam 84 is shown displaced from said zero position wherein it normally registers with the end 83 of feeler lever 77, and thereby prevents the latter from entering this cut-out portion to prevent spring-caused circuit-breaking movement of the switch blades. Also, when cam 84 is turned away from its zero position (Fig. 2) to some time setting as shown in Fig. 4 cam formation 179 on slide bar 177 has been disengaged from trip pin 180 and thus permitted to drop and render latch 57 operative to catch and hold catch 56 on actuator 31. bar 177 being constrained for vertical sliding movement by engagement of one elongated slot 185 with cam hub 93 and of another slot 182 with a casing carried pin 181. Slide bar 177 operates latch 57 by means of rod 178.

When the timer is to be used to effect double automatic action of the switch blades, the operation is as follows:

The timer setting handle 89 is turned counter-clockwise away from its normal or zero position (Fig. 2) to the desired time setting as in Fig. 3. Upon release, it automatically begins its retarded, spring-driven return to zero position. The band spring 86 has been wound a corresponding amount by this time'- setting operation and the cam 84 rotated so that its cut-out portion 92 is removed from a osition to permit yielding of feeler lever 77.- the periphery of said cam now positive- 1y preventing such yielding, until return of the cut-out portion 92 to its position as in Fig. 4. Up to this time the detent block 72 is thus locked in its lower position by the presser foot 76 and in such position will prevent passing of latch dog 63 when encountered in opening movement of the switch blades 24. The actuator lever 31, however, when swung forwardly. to tension the spring 41, becomes automatically locked against the tension of both the switch opening spring 41 and the switch closing spring 176, and is held in its extreme outward and downward position through en, agement of catch 56 with latch 57, these parts being formed to pass smoothly into locking engagement. The switch is now set for time-controlled double action, first, to break the circuit, and secondly, to make the circuit (or vice-versa depending on the desired location of clips 21) under action first of spring 41 when cam cut-out 92 is returned by the timer to a position to release lever 83 and thereb dog 63 (Fig. 3) and secondly under action of spring 176 when bar formation 179 is engaged and lifted by return of cum carried pin 180 (Fig. 2) thus disengaging latch 57 from catch 56 by upward pull on wire 178. Obviously, the pin 180 can be inserted in a variety of positions on the cam 84 in the series of holes 180a to vary the interval that will elapse between the first and second automatic switch actions. In the normal and inactive condition of the timer (which it always tends to assume after the time setting has been played out) it will be understood that both detents 72 and 57 are conditioned to free the switch for direct and repeated actuation by hand without timer control.

For the purpose of indicating in all positions of the switch, whether or not the switch is under time control, there is shown in Fig. 6 indicator mechanism comprising a plurality of pivoted sheet metal sign carriers, of which the carrier 106' bears the On sign and is arranged, by its up and down swingmg movement to efiect simultaneous up and down swinging movements of a second sign carrier 137 pivoted idly at 138 to the front plate 102 and normally positioned to fall diagonally across the carrier 106 in back thereof as shown in Figs. 10 and 11. Interposed between front carrier 106' and rear carrier 137 is a third carrier 139 that swings on the same pivot 138 with rear carrier 137. Each of these carriers is stamped from thin sheet stock and is entirely flat except for certain overlapping ears formed co-operatively to engage with and guide the other carriers. The ears 141 and 142, shown as sectioned, respectively, in Figs. 8 and 11, extend rearwardly from the front carrier 106 and overlap rear carrier 137, without interference with intermediate carrier 139 to guide the rear carrier 137 at its point of engagement with the front carrier by which it is actuated. In the downward swinging movement, this actuation occurs through cam action of the right hand edge of car 141, where it is turned backwardly, with the upper convex edge 143 of a spur formation on rear carrier 137. In upward swinging movement the front carrier 106 swings the idler rear carrier 137 simultaneously upwardly through co-operativc cam action between the upper edge of car 142 (where it is turned backwardly) with a lower convex edge 144 of the rear carrier. Figs. 9 and 13 show the only operating connection of the intermediate carrier 139, this connection comprising a curved tongue 146 bent sharply to the rear from intermediate carrier 139 and immediately upwardly after passing through a correspondingly curved slot 147 in the rear carrier 137. As clearly shown in Fig. 13, the tongue 146 at its lower portion is normally held downwardly against the lower edge of the slot 147 by a light wire spring 1 18, which latter at its free end is guided in a seat formed at the back of the rear carrier by said tongue, this spring being anchored at its opposite end in a rearwardly turned ear 149 formed from the rear carrier 137 as plainly shown in Fig. 1O.- Normally the spring 148 acts to hold rear carrier 137 and intermediate carrier 139 in their aligning position shown in Fig. 6, but may flex resiliently to permit relative separating movement therebetween in one direction of swing, as hereinafter to be described. Fig. 6 shows a new element added to the switch operating, bail-crank 47 that engages the actuator lever 31, this element being a rigid wiper tongue 151 secured, for convenience, to the under side of the said bail-crank and extending rearwardly therefrom at a point slightly to the left of its center. This tongue as viewed in Fig. 14, conforms to'the curve of a circumferential are relative to the pivot of bail-crank 47. Fig. 6 also shows, in addition to the bracket-supported, carrier-operating crank-wire 111, a similar crank-wire 152 pivotally carried by bracket extensions 153 similarly formed from the partition plate 103,one arm of the latter crank-wire extending rearwardly to work under a forwardly projectng lug 154 on the intermediate carrier, and the other curved arm extending generally downwardly to be encountered by the aboie described wiper tongue 151. A stop slip 150 is carried by each of crank wires 111 and 152 to limit their downward swing. The carriers 137 and 139 above described respectively bear a differently worded sign directing the operator how to mani ulate the control agencies of the time switc ,t-hese signs in the lower position oftheir carriers being positioned to register back of a second window opening 155 near the right side of the front plate, best shown in Fig. 6.

The operation of this direction indicator mechanism is as follows :-VVhen looking at the front of the enclosed time-switch, the operator sees before him in the two front-plate windows, one of three different sign combinations. Assuming that the switch is open, he sees the sign Off in the left window informing him that the switch is open and the sign Swing arm up in the right window, bearing a diagonal arrow as shown, which arrow in the assembled structure points directly to the switch control arm 51 at the right of the cover hood 114.. The latter sign clearly indicates that the switch is conditioned for manual operation and not cooked for time control." It should be noted that the sign Swing arm up as is the case with the sign fOff is stationary and carried by the partition plate. When the control arm is swung up to close the switch, the visible signs are changed to On in the left window and to Swing arm down in the right window also indicating not under time control. Such change of signs in the left window has been caused by the depresmon of carrier 106' against the tension of spring 108 the stationary SW1 ng arm up sign in the right window at the same time having been covered by downward swing of the rear carrier 137 as effected in a manner heretofore described.

In Fig. 13 it will be noted that the intermediate carrier 139 is still held in its uppermost position by the wiper-tongue 151 through the medium of crank-wire 152, and against the tension in spring l48. that now tends to swing the intermediate carrier 139 downwardly- Since the wiper tongue 151 engages crank-wire 152 for holding intermediate carrier 139 up, at substantially the same time crank-wire 111 is encountered by the pin 62 to depress the front and rear car- .riers 106' and 137, it follows that in ordinary,

direct, hand actuation of the switch the intermediate carrier 139 and its sign Turn hand back never appears in the window 155. The operator in the position of parts in Fig. 13, reads On in the left window informing him that the switch is closed, and in the right window reads the operating directions Swing arm down informing him how to manipulate the control handle to open the switch. On again closing the switch it will be understood that the spring 108 restores all carriers to their upper position thus clearing the windows in the front plate of all mov-' able signs.

The function of the sign worded Turn hand back is to inform the operator that the switch is cocked for time control and cannot be operated by hand therefor. It will be recalled that there is a possible third condition of the switch operating mechanism in which the switch is tensioned for automatic, timergoverned actuation, and in which condition of the operating mechanism the switch control arm 51 is locked in its lower extreme position by catch 56 and the switch blades 24 are held in circuit-making position against the switch opening tension of spring 41, so that now a different mode of manipulation of the control agencies must be resorted to for opening the switch. Only when the switch is cooked and under control of the timer, the sign Turn hand back is caused to appear in win-dow 155. Figs. 1 and 5 shows the switch blades 24 held in their On position by the timer controlled detent parts,this closed condition of the switch remaining truly registered by the sign On in the left window of the front plate, but said figure also represents the switch control arm as depressed and the actuator lever 31 accordingly withdrawn and locked in position for tensioning the switch. Accompanying withdrawal of the tongue 151 on bail-crank 47' has released the crank-wire 152 and permitted the intermediate carrier 139, with its sign Turn hand back to drop in front of the Swing arm down sign under impulse of the wire spring 148. It will be noted that the latter sign also has an arrow but that this arrow points to the time control hand 89 thusunmista-kably indicating the control agency of the time-switch to which the sign refers, and plainly informing the operator (who presumably has just turned the timer control hand away from its zero position for putting the switch under timer control) that to open the switch he must return the timer control hand to zero.

Whereas, the sequence of automatic circuit switching action, effected by the switch mechanism here shown is first Off and then On, it could as readily be made first On and then Off if desired, or connected in circuit so as to first dim and then extinguish lights or perform any two or more controlling functions possible to a switch.

In preface to the following claims, it should be stated that the terms employed are not directed explicitly to the embodiments of my invention herein described, such being merely an illustrative example of other or equivalent constructions coming within the novel principles involved.

What I claim is 1. In combination, a time motor, a manually operable timer returnable to its starting position by said motor when manually displaced from said position, electric circuit control means operable by said timer to effect a circuit change when said timer is returning toward its starting position, and a second timer operatively adjustable relative to said first timer and likewise returnable to its starting position by said motor and when so returning operative upon said means to effect a different circuit change in predeterminable time relation to the first said circuit change, one of said timers being so connected that the act of displacing same from its starting position Winds the driving spring of said motor.

2. In combination with a switch contact tensionable to perform a plurality of current switching actions, detent mechanism to defer said actions, timing mechanism to cause the release of said contact from said detent mechanism, and time setting means arranged to energize and set in operation said timing mechanism.

3. In combination with a switch contact tensionable to perform a plurality of current switching actions, detent mechanism to defer said actions, spring driven timing mechanism to cause the release of said contact from said detent mechanism and time setting means arranged to energize and de-energize the driving spring for said timing mechanism.

4. In combination with a switch contact tensionable to perform a plurality of current switching actions, detent mechanism to defer said actions, and spring driven timing mechanism to cause the release of said contact from said detent mechanism, and time setting means arranged to energize the driving spring for said timing mechanism and reversibly movable to recondition the time setting thereby to vary and redetermine the interval to elapse before said mechanism shall release said contact.

5. In combination with a switch contact tensionable to perform a plurality of current switching actions, detent mechanism to defer said actions, and spring driven timing mechanism operative to cause successive release of said contact from said detent mechanism at respectively different and predeterminable times, and a plurality of time setting devices, one of said devices being arranged so that manual adjustment of same determines. the time of release of said contact and also winds the driving spring for said timing mechanism.

6. In combination with a switch contact tensionable to perform a plurality of current switching actions, detent mechanism to defer said actions, and spring driven timing mechanism operative to cause successive release of said contact from said detent mechanism, and a plurality of time setting devices, relatively and separately adjustable to control respectively the different times of release of said contact, and one of said devices being arranged so that manual adjustment of same determines the time of release of said contact and also winds the driving spring for said timing mechanism.

7. In combination with a switch contact tensionablc to perform a plurality of current switching actions, detent mechanism to defer said actions, and spring driven timing mechanism operative to cause successive release of said contact from said detent mechanism, and a plurality of time setting devices, relatively and separately adjustable to control respectively the different times of release of said contact, and one of said devices being arranged to energize and de-energize the driving spring for said timing mechanism.

8. In combination with an electric switch contact operable by hand and timing mechanism conditionable to control a plurality of differently timed automatic actions thereof, an indicator conditionable by successive actions of the switch contact to indicate respectively different positions of said contact and means indicating in each of said positions whether or not said timing mechanism is conditioned to automatically control said contact.

9. In a switch and timer mechanism an mechanism having a control andle operative to directly actuate the switch contacts and also to tension themfor a plurality of automatic actions; and escapement mechanism separately and individually to overn said automatic actions; and a spring riven timer mechanism operable to govern the said escapement mechanism and havin a time indicating handle, movement of which in opposite direction acts respectively to energize and de-energize the driving spring of the timing mechanism. I 25 11. In combination, a time motor, a manually operable timer returnable to its starting position by said motor when manually displaced from said. osition, electric circuit control means. opera 1e by said timer to effect a circuit change when said timer is returning toward its starting position, and a second timer operativel adjustable relative to said first timer and li ewise returnable to its starting position by saidmotor and when so returning operative upon said means to effect a different circuit change in predeterminable time relation to the first said circuit chan e, one of said timers being so connected that t c act of displacing said timer from. and restoring it to said starting position respectively winds and unwinds the driving spring of the motor. 12. In combination; an electric switch having a control handle and movable contact governed thereby; a retarded, spring-driven timer normally. urged to and held idle in stop-limited position, wherein it frees said contact for movement responsive to said handle, and means operated b said timer to restrain said contact in a p uralit of its circuit-controlling positions when t e timer is displaced from its sto .limited position; together with a time in icating handle for adjusting said timer to and away from its stop limited position, and connections whereby movement of said time indicating handle in opposite directions respectively energizes and de-energizes the driving spring for said timer.

13. In combination, a time motor, a manually operable timer returnr ble to its starting position by said motor when manual! displaced from said osition, electric circuit control means opera 1e by said timer to effect a circuit change when said timer is returning circuit change when said timer is returnin' toward its startingposition, and a second timer ope-ratively adjustable relative to said first timer andlikewise returnable to its starting position by said motor and when, so returning operative upon said means-to effect a difl'erent circuit change in redeterminable time relation to the first sai circuit change, one of said timers being so connected that the act of dis lacing same from its starting position win s the driving spring of said motor, and both of said timersbeing manually restorable to their said respective starting positions independently of the operation of said motor. 7

14. In combination, a time motor, a manually operablc timer returnable to its starting position by said motor'when manually displaced from said position, electric circuit control means operable by said timer to effect a toward its starting position, and a secon timer operatively adjustable relative to said first timer and likewise returnable to :its starting position by said motor and whenso returning operative upon said means to effect a different circuit change in redeterminable time relation to the first sai circuit change, one of said timers bein so connected that the act of displacing same rom the starting position Winds the driving spring of said motor, and both of said timers after their initial displacement being manually readjust-able to positions nearer their starting positions therebyreducing the interval of tlme consumed in theirmotor. caused return to starting position. I a

15. An electric switch timer having two time determining members settable in selectively different positions to predetermine respectively different intervals of time, a time motor operative to repel each of said members to a position or causing switch operation, said movement and members ceasing to cause further time controlled switch action until subsequently reset so to do.

16. In swltch and time mechanism, in combination, electric circuit control means, a timer operative upon said means to effect a definite series of selectively timed circuit chan s when said timer is set in action to com ete one operating cycle, and devices ren ering said timer inoperative with relation to said means, thereby to cause no further circuit change, after the completion of its said cycle until urposely again set in action to com lete a su sequent cycle.

17. Y n combination, a time motor, a manuallys'ettablo'" timer impellable to a designed position by said motor, electric circuit control means operable by said timer to effect a circuit change when said timer arrives at its designed position, a second timer manually settable in variable relation to said first timer and likewise impellable-to a designed position by said motor'and thereupon operative -to 1 effect a different circuit change in predetermina-ble time relation to thefirst said circuit change, one of said timers being operative to start the running of said time motor.

18. In combination, a time motor, a manually settable timer impellable to a designed position by said motor, electric circuit control means operable by said timer to effect a circuit change when said timer arrives at its desi ed position, a second timer manually settab e in variable relation to said first timer and likewise impellable to a designed position by said motor and thereupon operative to effect a different circuit change in predeterminable time relation to the first said circuit change, means to arrest the running of said time motor after both said timers have been impelled to their said respective positions by said motor, and connections whereby manipulation of one of said timers restarts the running of said time motor.

19. In combination, a time motor, a manually operable timer returnable to its starting position by said motor when manually displaced from said position, flow control means operable by said timer to affect the flow when said timer is returning toward its starting position, and a second timer operatively adjustable relative to said first timer and likewise returnable to its starting position by said motor and when so returnin operative upon said means to differently a ect the flow in redeterminable time relation to the first sai affectation of flow one of said timers being so connected that the act of displacing same from its starting position winds the driving spring of said motor.

20. In combination with a flow controller tensionable to perform a plurality of flow affecting actions, detent mechanism to defer said actions, timing mechanism to cause the release of said controller from said detent mechanism, and time setting means arranged to energize and set in operation said timing mechanism.

21. In combination with a flow controller tensionable to perform a plurality of flow affecting actions, detent mechanism to defer said actions, spring driven timing mechanism to cause the release of said controller from said detent mechanism and time setting means arranged to energize and de-energize the driving spring for said timing mechanism.

22. In combination with a fiow controller tensionable to perform a plurality of flow affecting actions, detent mechanism to defer I said actions, and spring driven timing mechanism to cause the release of said controller from said detent mechanism. and time setting means arranged to energize the driving spring for ,said timing mechanism and reversibly movable to recondition the time setting thereby to vary and redetermine the interval to ela before said mechanism shall release sai controller.

23. In combination with a flow controller tensionable to perform a plurality of flow affecting actions, detent mechanism to defer said actions, and spring driven timing mechanism operative to causesuccessive release of said controller from said detent mechanism at respectivel diflerent and predeterminable times and a p urality of time setting devices, one of said devices being arranged so that manual ad'ustment of same determines the time of, r ease of said controller and also winds the driving spring for said timing mechanism.

- 24. In combination with a flow controller tensionable to perform a plurality of flow affecting actions, detent mechanism to defer said actions, and spring driven timing mechanism operative to cause successive releases of said controller from said detent mechanism, and a plurality of time setting devices, relatively and separately adjustable to control respectively the different times of release of said controller, and one of said devices being arranged so that manual adjustment of same determinesthe time of release of said controller and also winds the driving spring for said timing mechanism.

' 25. In combination with a flow controller tensionable to perform a plurality of flow affecting actions, detent mechanism to defer said actions, and spring driven timing mechanism operative to cause successive release of said controller from said detent mechanism, and a plurality of time setting devices relatively an separately adjustable to control res )ectively the different times of release of sai controller, and one of said devices bei arranged to energize and de'-ener%ze the driving spring for said timing mec anism.

26. In combination with a flow controller 0 erable by hand and timin mechanism condltionable to govern a plura ity of differently timed automatic actions thereof, an indicator conditionable by successive actions of the flow controller to indicate respectively different positions of said controller and means indicating in each of said positions whether or not said timing mechanism is conditioned to automatically govern said controller.

27. In a flow control and timer mechanism a flow controller manually operable and also tensionable at one setting to perform a plurality of automatic movements, a timer operative when set in action to complete one operating cycle to overn said controller movements and self con itioned at the end of its said cycle to free the flow control from further government by said timer until said timer is set and energized to complete a subsequent cycle of operation.

28. In combination, a time motor, a manually operable timer returnable to its starting position by said motor when manually displaced from said osition, flow control means operable by said timer to affect the flow when said timer is returning toward its starting position, and a second timer operatively adjustable relative to said first timer and likewise returnable to its starting position by said motor and when so returning 0 erative upon said means to differently affect t e flow in redeterminable time relation to the first sai affectation of flow, one of said timers being so connected that the act of dis lacing said timer 1 from and restoring it to said starting position respectivel winds and unwinds the driving spring of t e motor.

29. In combination, a time motor, a manually operable timer returnable to its starting position by said motor when manually displaced from said position, flow control means operable by said timer to affect the flow when said timer is returning toward its starting osition, and a second timer operatively adustable relative to said first timer and likewise returnable to its starting position by said motor and when so returning operative upon said means todifferently affect the flow in predeterminable time relation to the first said aflectation of flow, one of said timers being so connected that the act of displacing same from its startin position winds the driving spring of sai motor, and both of said timers being manually restorable to their said respective startin positions independently of the o eration 0 said motor.

30. In com ination, a time motor, a manually operable timer returnable to its starting position by said motor when manually displaced from said osition, flow control means operable by said timer to affect the flow when said timer is returning toward its startin osition, and a second timer operatively a lustable relative to the first said timer and ikewise returnable to its starting position by said motor and when so returning operative upon said means to differently afiect the flow in redeterminable time relation to the first sai afiectation of flow, one of said timers being so connected that the act of displacing same from the starting position winds the driving sprin of said motor, and both of said timers a ter their initial displacement being manually readjustable to positions nearer their starting positions thereby reducing the interval of time consumed in their motor caused return to starting position.

31. A flow affecting timer having two time determining members settable in selectively different positions to predetermine respectively different intervals of time, a time move ment operative to pro 1 each of said members to a position a ecting the flow, said movement and members thereafter ceasing to afiect the flow until subsequently reset so to do.

RAYMOND D. SMITH. 

